Backend changes:
- Add acknowledgement_required field to Document model (migration 0009)
- Add FolderViewSet with CRUD endpoints for folder management
- Add folder_id filtering support in DocumentViewSet.get_queryset()
- Register folders endpoint in API router
Frontend changes:
- Add DocumentAcknowledgementsReport component for viewing acknowledgement status
- Add folder_id parameter to getDocuments API method
- Add currentFolderId prop to DocumentUploadForm
- Update document creation to save to selected folder
- Add folder filtering in documents list view
- Fix PDF worker loading (use local worker instead of CDN)
- Lock pdfjs-dist version to 5.4.296 to prevent conflicts
- Add postinstall script to copy PDF worker to public/
Features:
- Hierarchical folder structure with parent-child relationships
- Filter documents by selected folder
- Upload documents to specific folders
- View acknowledgement statistics with search and export
- Local PDF worker for reliable document preview
Frontend:
- Установлен Sonner для toast уведомлений
- Создан Service Worker (public/sw.js) для Web Push
- Реализован хук useWebPush для управления подписками
- Добавлены утилиты Web Push (lib/push.ts)
- Создан компонент NotificationCenter с UI
- Интегрирован в AppShell (header desktop + mobile)
- Добавлен Toaster в Providers
API методы:
- getVapidPublicKey() - получение VAPID ключа
- subscribePush() - создание подписки
- unsubscribePush() - удаление подписки
- getPushSubscriptions() - список подписок
Возможности:
- � Web Push (работают даже когда вкладка закрыта)
- � NotificationCenter с badge и историей
- � Toast уведомления (Sonner)
- ⚙️ Настройки push подписок
- � Респонсивный дизайн
Документация: frontend/NOTIFICATIONS_IMPLEMENTATION.md
